| 摘要: | 摘要： Highly ordered benzene‐bridged periodic mesoporous organosilicas (PMOs) that were functionalized with exceptionally high loadings of carboxylic acid groups (COOH), up to 80 mol % based on silica, have been synthesized and their use as adsorbents for the adsorption of methylene blue (MB), a basic dye pollutant, and for the loading and release of doxorubicin (DOX), an anticancer drug, is demonstrated. These COOH‐functionalized benzenesilicas were synthesized by the co‐condensation of 1,4‐bis(triethoxysilyl) benzene (BTEB) and carboxyethylsilanetriol sodium salt (CES), an organosilane that contained a carboxylic acid group, in the presence of non‐ionic oligomeric surfactant Brij 76 in acidic medium. The materials thus obtained were characterized by a variety of techniques, including powder X‐ray diffraction (XRD), nitrogen‐adsorption/desorption isotherms, TEM, and 13C and 29Si solid‐state NMR spectroscopy. Owing to the exceptionally high loadings of COOH groups, their high surface areas, and possible ππ‐stacking interactions, these adsorbents have very high adsorption capacities and extremely rapid adsorption rates for MB removal and for the controlled loading/release of DOX, thus manifesting their great potential for environmental and biomedical applications. Functionalization matters! Highly ordered benzene‐bridged periodic mesoporous silicas with extremely high loadings (up to 80 mol %) of COOH groups have been synthesized and used as adsorbents for the removal of methylene blue (MB) and the delivery of an anticancer drug, doxorubicin (DOX). These materials exhibited high adsorption capacities, rapid adsorption rates for methylene blue removal, and an excellent loading/release profile for doxorubicin.
其他題名： Chem. Eur. J
出版者： Weinheim: WILEY-VCH Verlag
出版日期： 2013-05-10
出處： Chemistry : a European journal, 2013-05, Vol.19 (20), p.6358-6367
資源來源： Alma/SFX Local Collection
版權： Copyright © 2013 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim
版權： Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
版權： Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
識別號： ISSN: 0947-6539
識別號： ISSN: 1521-3765
識別號： EISSN: 1521-3765
識別號： DOI: 10.1002/chem.201204400
識別號： PMID: 23512281
識別號： CODEN: CEUJED |
